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![Given a sample PTFE has 1. Youngs modulus, E=0.48 Gla 2. Balk modalus, 16 = 2 Gla. E=3K (i-2 ] 0.48 = 3x2 (1-24] 1-2M = 0.08](http://img.homeworklib.com/questions/9badde40-0dea-11ec-b8a8-fd361ecace2e.png?x-oss-process=image/resize,w_560)
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Given that a sample of PTFE has a Young's modulus of 0.48 GPa and a bulk...
(3) Elastic constants: (a) Consider a cube of isotropic material and show that the bulk modulus...
(3) Elastic constants: (a) Consider a cube of isotropic material and show that the bulk modulus Eq. (3.5) is related to Young's modulus Eq. (3.1) and Poisson's ratio Eq. (3.6) by K 3(1-2v) (b) What happens when v reaches its upper limit of 0.5? (4) Elastic constants: We have stated that the numerical value of Poisson's ratio is always between +0.5 and -1, but we have proven only the upper limit. Use Eq. (3.10) to argue why -1 is the...
Suppose the value of Young's modulus (GPa) was determined for cast plates consisting of certain intermetallic...
Suppose the value of Young's modulus (GPa) was determined for
cast plates consisting of certain intermetallic substrates,
resulting in the following sample observations:
116.4
115.7
114.7
115.1
115.5
(a) Calculate x.
GPa
Calculate the deviations from the mean. (Enter your answers to two
decimal places.)
x
116.4
115.7
114.7
115.1
115.5
deviation
(b) Use the deviations calculated in part (a) to obtain the sample
variance and the sample standard deviation. (Round your answers to
three decimal places.)
s2
=
GPa2...
(Q2) Write the characteristic matrices of the elements below. (5 marks) E = Young's modulus ofela...
Finite element method
(Q2) Write the characteristic matrices of the elements below. (5 marks) E = Young's modulus ofelasticity v Poisson's ratio 1 -length u,
(Q2) Write the characteristic matrices of the elements below. (5 marks) E = Young's modulus ofelasticity v Poisson's ratio 1 -length u,
Will rate!! Suppose the value of Young's modulus (GPa) was determined for cast plates consisting of...
Will rate!!
Suppose the value of Young's modulus (GPa) was determined for cast plates consisting of certain intermetallic substrates, resulting in the following sample observations: 116.7 115.8 1149 115.3 115.9 (a) Calculate x. CEnter your answer to two decimal places.) Calculate the deviations from the mean. (Enter your answers to two dedimal places.) deviation (b) Use the deviations calculated in part (a) to obtain the sample variance and the sample standard deviation. (Round your answers to three decimal places) 116.7...
pls help, i don't understand what i did wrong Suppose the value of Young's modulus (GPa)...
pls help, i don't understand
what i did wrong
Suppose the value of Young's modulus (GPa) was determined for cast plates consisting of certain intermetallic substrates, resulting in the following sample observations: 116.4 115.6 114.6 115.1 115.5 (a) Calculate X. 115.4 GPa Calculate the deviations from the mean. (Enter your answers to two decimal places.) 115.6 116.4 114.6 115.1 115.5 deviation 1 0.04 -0.8 01 (b) Use the deviations calculated in part (a) to obtain the sample variance and the...
2. A sound wave is travelling in a steel frane of a steel that has a Bulk modulus 160 GPa and den...
2. A sound wave is travelling in a steel frane of a steel that has a Bulk modulus 160 GPa and density 7850 kg m. If the frequency of theound wave is 450 kHz (a) caleulate its wavelength. b) What happens to the wavelength if some of the steel is replaced by osmium (i. e. its density is higher)? (c) Explain the meaning of the Bulk modulus using a diagram of a physical ob ect.
2. A sound wave is...
A material with a Young's Modulus of 1 GPa has an edge crack (a) of 1.58...
A material with a Young's Modulus of 1 GPa has an edge crack (a) of 1.58 x10^-5 m. When it is loaded in tension, it fractures at a stress of 450 MPa; given the dimensionless quantity Y can be taken as 1 in fracture toughness calculations, what is the toughness, Gc of the material. 0 0.01 m^1/2 O 10 kJ/m^2 03.17 MPa m^1/2 O 00317 m^1/2 O None of the above
1. Consider the following displacement field in an isotropic linearly elastic solid descri terms of the Young's modulus E and Poisson's ratio v: (a) Determine the stress tensor (matrix),...
1. Consider the following displacement field in an isotropic linearly elastic solid descri terms of the Young's modulus E and Poisson's ratio v: (a) Determine the stress tensor (matrix), ) Is the state of stress a possible equilibrium stress field? Neglect body forces. 10 point 2. The assemblv shown in
1. Consider the following displacement field in an isotropic linearly elastic solid descri terms of the Young's modulus E and Poisson's ratio v: (a) Determine the stress tensor (matrix), )...
Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for aluminum...
Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for aluminum alloy sheets of a particular type, its mean value and standard deviation are 70 GPa and 1.6 GPa, respectively (values given in the article "Influence of Material Properties Variability on Springback and Thinning in Sheet Stamping Processes: A Stochastic Analysis (Int. J. of Advanced Manuf. Tech, 2010: 117-134)). (a) If X is the sample mean Young's modulus for a random sample of n 16...
Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for metal...
Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for metal sheets of a particular type, its mean value and standard deviation are 70 GPa and 2.5 GPa, respectively. Suppose the distribution is normal. (Round your answers to four decimal places.) (a) Calculate P(69 < X < 71) when n = 9. (b) How likely is it that the sample mean diameter exceeds 71 when n = 16?
(3) Elastic constants: (a) Consider a cube of isotropic material and show that the bulk modulus Eq. (3.5) is related to Young's modulus Eq. (3.1) and Poisson's ratio Eq. (3.6) by K 3(1-2v) (b) What happens when v reaches its upper limit of 0.5? (4) Elastic constants: We have stated that the numerical value of Poisson's ratio is always between +0.5 and -1, but we have proven only the upper limit. Use Eq. (3.10) to argue why -1 is the...
Suppose the value of Young's modulus (GPa) was determined for
cast plates consisting of certain intermetallic substrates,
resulting in the following sample observations:
116.4
115.7
114.7
115.1
115.5
(a) Calculate x.
GPa
Calculate the deviations from the mean. (Enter your answers to two
decimal places.)
x
116.4
115.7
114.7
115.1
115.5
deviation
(b) Use the deviations calculated in part (a) to obtain the sample
variance and the sample standard deviation. (Round your answers to
three decimal places.)
s2
=
GPa2...
Finite element method
(Q2) Write the characteristic matrices of the elements below. (5 marks) E = Young's modulus ofelasticity v Poisson's ratio 1 -length u,
(Q2) Write the characteristic matrices of the elements below. (5 marks) E = Young's modulus ofelasticity v Poisson's ratio 1 -length u,
Will rate!!
Suppose the value of Young's modulus (GPa) was determined for cast plates consisting of certain intermetallic substrates, resulting in the following sample observations: 116.7 115.8 1149 115.3 115.9 (a) Calculate x. CEnter your answer to two decimal places.) Calculate the deviations from the mean. (Enter your answers to two dedimal places.) deviation (b) Use the deviations calculated in part (a) to obtain the sample variance and the sample standard deviation. (Round your answers to three decimal places) 116.7...
pls help, i don't understand
what i did wrong
Suppose the value of Young's modulus (GPa) was determined for cast plates consisting of certain intermetallic substrates, resulting in the following sample observations: 116.4 115.6 114.6 115.1 115.5 (a) Calculate X. 115.4 GPa Calculate the deviations from the mean. (Enter your answers to two decimal places.) 115.6 116.4 114.6 115.1 115.5 deviation 1 0.04 -0.8 01 (b) Use the deviations calculated in part (a) to obtain the sample variance and the...
2. A sound wave is travelling in a steel frane of a steel that has a Bulk modulus 160 GPa and density 7850 kg m. If the frequency of theound wave is 450 kHz (a) caleulate its wavelength. b) What happens to the wavelength if some of the steel is replaced by osmium (i. e. its density is higher)? (c) Explain the meaning of the Bulk modulus using a diagram of a physical ob ect.
2. A sound wave is...
A material with a Young's Modulus of 1 GPa has an edge crack (a) of 1.58 x10^-5 m. When it is loaded in tension, it fractures at a stress of 450 MPa; given the dimensionless quantity Y can be taken as 1 in fracture toughness calculations, what is the toughness, Gc of the material. 0 0.01 m^1/2 O 10 kJ/m^2 03.17 MPa m^1/2 O 00317 m^1/2 O None of the above
1. Consider the following displacement field in an isotropic linearly elastic solid descri terms of the Young's modulus E and Poisson's ratio v: (a) Determine the stress tensor (matrix), ) Is the state of stress a possible equilibrium stress field? Neglect body forces. 10 point 2. The assemblv shown in
1. Consider the following displacement field in an isotropic linearly elastic solid descri terms of the Young's modulus E and Poisson's ratio v: (a) Determine the stress tensor (matrix), )...
Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for aluminum alloy sheets of a particular type, its mean value and standard deviation are 70 GPa and 1.6 GPa, respectively (values given in the article "Influence of Material Properties Variability on Springback and Thinning in Sheet Stamping Processes: A Stochastic Analysis (Int. J. of Advanced Manuf. Tech, 2010: 117-134)). (a) If X is the sample mean Young's modulus for a random sample of n 16...
Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for metal sheets of a particular type, its mean value and standard deviation are 70 GPa and 2.5 GPa, respectively. Suppose the distribution is normal. (Round your answers to four decimal places.) (a) Calculate P(69 < X < 71) when n = 9. (b) How likely is it that the sample mean diameter exceeds 71 when n = 16?
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