Please explain how to do each part and tell me if my drawing is correct. thank you You perform a mechanical test of a single crystal iron with the b.c.c. lattice. The yield strengthamounts to 400 MPa when the load is applied along the [001] direction. The activated slip systemis (011) [11Xyz-| -хуч(a) Determine the critical resolved shear stress TCRSSxyz(b) Based on the value of TCRSS, evaluate the yield strength of a polycrystalline material.Final answers: TCRSS =class)poly163 MPa, σ = 448 MPa (if you have troubles, come to see me afterThe 2.75Тыс.[001][4vw]TCRSS = 0.2богM(011)[011]xI moved

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Answered: You perform a mechanical test of a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Televio olpn Example moleda Sblaiy Ieteyo elpnie erli lliW (B Q.: A stress of 75 MPa is applied in the [001] direction on an fcc single crvstel Calculate: T. (a) the resolved shear stress acting on the (111) [-101] slip system and, (b) the resolved shear stress acting on the (111) [-110] slip system.
O The following engineering stress-strain data were obtained for a 0.2% C plain-carbon steel. (i) Plot the engineering stress-strain curve. (ii) Determine the ultimate tensile strength of the alloy. (iii) Determine the percent elongation at fracture. Engineering Engineering Engineering Engineering Stress Strain Stress Strain (ksi) (in./in.) (ksi) (in./in.) 76 0.08 30 0.001 75 0.10 55 0.002 73 0.12 60 0.005 69 0.14 68 0.010 65 0.16 72 0.020 56 0.18 74 0.040 51 0.19 75 0.060 (Fracture)
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For the aluminum alloy whose stress-strain behavior can be observed in the "Tensile Tests" module of Virtual Materials Science and Engineering (VMSE), determine the following: (a) the approximate yield strength (0.002 strain offset), MPa (b) the tensile strength, and i MPa (c) the approximate ductility, in percent elongation. i %EL
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1- Estimate the Yield Strength and/or Ultimate Strengths for the following materials and states whether the material is ductile or brittle: (a) CA655-High Silicon Bronze\ spring temper (b) Carbon Steel 1030\ cold rolled (c) Polypropylene 20-30% glass filled 2- Estimate the Stress-concentration factors (Kt) for: (d) Stainless Steel 17-7 PH (AISI 631)\ hardened (a) D/d= 1.15 & r/d=0.14 D (b) d/W-0.25 & d/h=1.5 (c) D/d= 1.07 &r/d=0.18 M Estimate the fatigue Stress-concentration factors (Kf) for: d M D d D/d= 1.2 & r/d=0.26 M (a) Steel: Sut=70 kpsi & r=3.6mm (b) Heat treated Aluminum: Sut=40 kpsi & r=0.15 in (c) Strain hardened Aluminum: Sut=241 Mpa & r=0.05 in If the loads are static and ox= 22 Mpa oy= -32 Mpa and Txy= 13 Mpa Find the following: (a) 01 & 02 (b) Safe or not? (Graphically) using Tresca, Von mises, and Max normal stress if the material is Ductile Iron 80-55-06 \ annealed. (c) S.F (analytically) if the material is Nylon 11 20-30% glass filled. If the load is static and T=22…
Steady-state creep rate data are given here for some alloy taken at 200°C (473 K): i és (h-¹) 2.2 x 10-3 h-1 2.5 x 10-2 o (MPa) 56 If it is known that the activation energy for creep is 130000 J/mol, compute the steady-state creep rate at a temperature of 230°C (503 K) and a stress level of 50 MPa. 70
If a rod of single-crystal copper (FCC) is pulled in tension in the [210] direction (i.e. force direction) at a tensile stress of 50 MPa, slip will occur in the [0 1 1] direction on the (1 1 -1) plane. Use this information to answer the following questions. Which of the following is the value of cos(lambda) for the angle lambda between the force direction and the slip direction? Group of answer choices 0.707 0.316 0.632 0.500
Consider a single crystal of some hypothetical metal that has the FCC crystal structure and is oriented such that a tensile stress is applied along a [11 2] direction. If slip occurs on a ( 111) plane and in a [0 11] direction, and the crystal yields at a stress of 5.12 MPa, compute the critical resolved shear stress. CRITICAL RESOLVED SHEAR STRESS • CRITICAL RESOLVED SHEAR STRESS (T, THE MOST FAVORABLY ORIENTED SLIP SYSTEM WHEN SHEAR STRESS IS AT J: SLIP IN A SYSTEM STARTS ON CRSS THIS CRITICAL VALUE • MINIMUM SHEAR STRESS REQUIRED TO INITIATE SLIP • SINGLE CRYSTAL PLASTICALLY DEFORMS WHEN: T, > T, CRSS OR TR(max) =T CRSS 'R Tcrss (cos o cos A)max
In an engineering application, the material is a strip of iron with a fixed crystallographic structure subject to a tensile load during operation. The part failed (yielded) during operation and needs to be replaced with a component with better properties. You are told that two other iron strips had failed at yield stresses of 110 and 120 MPa, with grain sizes of 30 microns and 25 microns respectively. The current strip has a grain size of 20 microns. The diameter of the rod is 1 mm and the load applied is 100 N. What is the yield stress of the new part C and would you recommend it for operation? Select one: a. 140.5, no Ob. 129.5, yes OC. 120.5 MPa, no O d. 133.5 MPa, yes O e. 123.5 MPa, yes
In an engineering application, the material is a strip of iron with a fixed crystallographic structure subject to a tensile load during operation. The part failed (yielded) during operation and needs to be replaced with a component with better properties. You are told that two other iron strips had failed at yield stresses of 110 and 120 MPa, with grain sizes of 30 microns and 25 microns respectively. The current strip has a grain size of 20 microns. The diameter of the rod is 1 mm and the load applied is 100 N. What is the yield stress of the new part C and would you recommend it for operation? Select one: a. O b. 129.5, yes C. 133.5 MPa, yes e. 120.5 MPa, no d. 140.5, no 123.5 MPa, yes

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