1) which of the following is true>
a) Buckling is a form of failure experienced by ductile materials
b) Buckling is a form of failure experienced under commpression
c) Buckling is a form of failure experienced under tension
d) Buckling is a form of failure experienced by brittle materials
e) Buckling lowers the ability of a material to support loads
f)buckling is a form of failure experienced by slende column
Buckling is a form of failure mostly occurs in Columns . Buckling is a failure where load is applied compressively in axial manner . When Loads are applied axially in compression , then lateral bending occurs in slender column . That lateral bending is called as Buckling . This bending occurs purely due to compression forces and not tensile forces . Buckling basically states that slended column loses its stability , thus its ability to support loads are decreased . Buckling main criteria is axial compressive force , bit it neither states that slended material should be tensile or compressive , Thus we can assume both . THUS , according the statements given Statements A , B , D , E , F are all correct statements |
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1) which of the following is true> a) Buckling is a form of failure experienced by...
1) which of the following is true> a) Buckling is a form of failure experienced by ductile materials b) Buckling is a form of failure experienced under commpression c) Buckling is a form of failure experienced under tension d) Buckling is a form of failure experienced by brittle materials e) Buckling lowers the ability of a material to support loads f)buckling is a form of failure experienced by slende columns 2)at the point of necking , which of the following...
True or False 1. For a fatigue failure, a part always fails above the ultimate strength of the material. 2. For a ductile material, the tensile yield strength and the compressive yield strength are not equal 3. Mode I of crack propagation occurs due to compressive stress 4. Distortion energy theory is used to predict failure for brittle materials 5. Temperature does not affect the endurance limit of a material 6. For a fatigue failure, a part always fails above...
Please answer all true/false questions
10. Materials which undergo plastic deformation prior to 11. A true elastic behavior has an instantaneous deformation to load. 12. Grain structure of metals is affected by plastic strain, such as, making wire. T 13. The mechanical behavior of all materials is affected by temperature 14. Elastic deformation changes the arrangement of atoms in materials. 15. 16. T or F failure are said to be "brittle." T or F F T orF T orF or...
6) Plastic deformation in a ductile machine ch question 10 points element causing separation into multiple pieces a. Ductile rupture b. Buckling c. Brittle fracture d. Fatigue 1) Plastic deformation amplified by high temperature operation over time a. Fretting b. Cavitation corrosion c. Creep d. Thermal shock stress e. Surface erosion Plastic deformation in a ductile machine element causing separation due to crack propagation a. Ductile rupture b. Fatigue c. Fretting d. Spalling 7) Static normal loads between two curved...
5. Circle true of false for the following statements: T The resistance ofa material to indentation is a qualitative indication of its strength. Ultimate tensile strength is the maximum stress on the engineering stress strain T F curve Young's modulus is closely related to the bonding energies of the atoms. T A bend test is used for brittle materials to describe the material's strength. T F Ductility is frequently quantified as the percent elongation at failure T F tr.
5....
For each of the following beams, state the expected flexural failure mode-plastic hinge, lateral torsional buckling (LTB), or local buckling The compression flange of each beam is traced at the locations marked with " "If the failure is by LTB. is it elastic or inelastic? Reference any charts or tables used and fully explain your answer. List any assumptions you have to make and be sure to consider in determining which limit state will control (a) The beam below is...
Material science 1) Polypropylene (PP) has a glass-transition temperature of -15 oC and a melting temperature of 175 oC. This means that at a temperature of -40 oC that PP is ________, and at temperature 0 oC PP is _________ . (A) brittle, brittle (B) ductile, brittle (C) brittle, ductile (D) ductile, ductile (E) low in thermal conductivity, high in thermal conductivity. .2) Galvanized steel corrodes slowly in air because: (A) the...
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1. Which of the following are viable ways to mitigate a rock slide or topple on to a roadway? a. Scale back the slopes b. Install rock anchors c. Install screens and catchment areas along the shoulder d. Construct rock sheds e. All of the above 2. Which of the following is not part of the classification basis for mass wasting? a. Rate of movement b. Shear force c. Nature of movement d. Type of material 3. How could you...
m Review Learning Goal: To use the formula for the critical load, i.e., the Euler buckling load, for pin-supported columns to calculate various parameters of columns. A column is made from a rectangular bar whose cross section is 5.5 cm by 9.1 cm . If the height of the column is 2 m, what is the maximum load it can support? The material has E = 200 GPa and Oy = 250 MPa Express your answer with appropriate units to...