Two strain gauges are placed on the center of a steel plate at 30⁰ to the known directions of the Principal Stresses. The measured values of strain in these gauges were 455 µε and -32 µε respectively. Calculate: Maximum and Minimum Principal Strains at the point (using Mohr’s Strain circle)
Two strain gauges are placed on the center of a steel plate at 30⁰ to the known directions of the Principal Stresses. The measured values of strain in these gauges were 455 µε and -32 µε respectively....
5-13. A rectangular rosette is attached to a steel plate having E 30 106 psi and v-03. The strain measurements are: (a) ε 500 μ¡n./in., ε.-300 μ¡n./in., and -100 μίη./in. (b) ε.-305 μ¡n./in., ε.-75 μ¡n./in., and ε.-150 μ¡n./in. Calculate the prin- cipal strains and stresses and the maximum shear stress. Locate the axis of the principal stress. 5-13. A rectangular rosette is attached to a steel plate having E 30 106 psi and v-03. The strain measurements are: (a) ε...
Part A - Question 3 (Total Marks for Part A - Question 3:20) A steel beam in an industrial structure is part of a complicated frame that was difficult to analyse. Using a rectangular strain gauge rosette, the actual strains at point A have been recorded while being subjected to test loads. It is necessary to determine the normal stresses and shear stresses in the actual beam subject to the test loads to check whether the stresses assumed in the...
Question 2 I (a) Using a 459 strain gauge rosette placed on a mild steel structure, the following strains were established from the measurements taken:£x = 75x10", Eyy =-115x10-6 = 210 10-6 and Yxy yy (i) Determine the corresponding normal stresses Ox and and shear stress txy. For mild steel, use Young's modulus E= 205 GPa , Poisson's ratio v=0.3 and shear modulus G = 78.8 GPa. [6 marks] (ii) Using the values obtained in (i), determine the principal stresses...
The measured strain values at point Q are as follows: Ea = 40(10), Eb = 980(10), &c = 330(10) 1) Calculate the strain components Ex, Ey and Yxy at point Q. 2) Calculate the stress components Ox, Oy and Txy at point Q. 3) Determine the principal stresses at point Q, using Mohr's circle. The Young's modulus E = 200 GPa, shear modulus G = 76.9 GPa, Poisson's ratio v= 0.29. 《 s,
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own words apartus 6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...