table 5

Hello I need help with Stress and Strain. Thank you!

The First half of this question has been answered. (First 3) Needing help with the last part. Answered: 1) Solid / Ductile Material 2) Spring Constant: K = 05 = 250 N/m 3) Time Threshold: 5 seconds Unanswered / Need: Viscoscity, Charasteristic Frequency & What real world model charasteristic does this describe?

Mild steel 1 Young;s modulus 1219.5 Yield strain and stress (0.4101,500.08) Failure stress and strain :not able to find because the given data shows the experiment did not reach the failure point.  if the material stress and strain does not reach a failure point ,what dose it means , does it means that the material is more stronger?

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NEED IN RUSH  THANK YOU

By looking at these graphs, answer the following answer: 1/ Is the material is ductile or brittle? explain by using information from the graphs. 2/ What are the differences between these two graphs?

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Cyclic Stresses (Fatigue); The S-N Curve 4. The fatigue data for a ductile cast iron are given as follows: Cycles to Failure Stress Amplitude [MPa (ksi)] 248 (36.0) 236 (34.2) 224 (32.5) 213 (30.9) 201 (29.1) 193 (28.0) 193 (28.0) 193 (28.0) 1 × 105 3 x 105 1 x 10⁰ 3 x 106 1 x 107 3 x 107 1 108 3 × 108 (a) Make an S-N plot (stress amplitude versus logarithm cycles to failure) using these data. (b) What is the fatigue limit for this alloy? (c) Determine fatigue lifetimes at stress amplitudes of 230 MPa (33,500 psi) and 175 MPa (25,000 psi). (d) Estimate fatigue strengths at 2 × 105 and 6 × 106 cycles.

hings The following results were obtained during a tensile test to destruction on a mild steel test piece of diameter 15.96mm and 80mm gauge length Extension for a load of 40KN = 0.08mm Maximum load applied during test = 93kN Diameter at fracture = 12.85mm %3D Final length between gauge points 106mm From these results, determine: i) The modulus of elasticity for mild steel ii) The tensile strength iii) Percentage of elongation iv) Percentage of reduction in area

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BM Strength of Materials Dr. Maad Abdullah Hussein AL-ESRAA UNIVERSITY COLLEGE 8. BRINELL TEST Load (P) Kg Material Diameter of Ball Impression Diameter (mm) No. Brinell Hardness, HB (mm) 1 Iron 2.5 0.65 187.5 Соpper 2.5 0.74 62.5 3 Aluminum 2.5 1.06 31.25 9. THE VICKERS TEST Impression Diameter (mm) d average Vickers Hardness, No. Material Load (P) Kg di d2 HV 1 Iron 0.58 0.65 50 2 Сopper 0.72 0.76 30 3 Aluminum 0.94 0.86 30

1 %AV l. 1:Y0 A docs.google.com/forms/d/e مختبر ميكانيك المواد Why used two equipment in shear force and bending moment experiment (one for ?S.F and the other to B.M) إجابتك What is the relationship between the ?distance from neutral axis and stress إجابتك Explain in steps with detail, how can find the ?Young's modulus for any unknown beam إجابتك What is the meaning of + S.F, -S.F, +B.M and ?- B.M إجابتك صفحة 4 من 5 II

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Please answer all 3 parts of the quesiton

Asiacell l. ZA0 @ 团 / photo_2021-02-18_13-04... 200 stress 150 (MPa) 100 50 0.1 0-2 0.3 strain From the tensile stress -strain behavior for the brass specimen ,cP the diameter is 12-8 mm Calculat e the follouding :- 1- The Yield stress , 2-Modulus of elasticity. - The Tensile strength .

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Please match different stresses to the stress value corresponding to the different points on the Stree-strain diagram of a low carbon steel.                                                    Proportional Limit                                                  Ultimate Strength                                                  Tensile Yield Strength A. A B. B C. D

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5. The following data were collected from a standard 0.505-in.-diameter test specimen of a copper alloy (initial length lo= 2.0 in.). After fracture, the total length was 3.014 in. and the diameter was 0.374 in. Load (Ib) Al (in.) 00000 3,000 6,000 0.00167 0.00333 7,500 0.00417 9,000 10,500 0.0090 0.040 12,000 0.26 12,400 11,400 0.50 (maximum load) 1.02 (fracture) a) Plot the data as engineering stress versus engineering strain. b) Compute the modulus of elasticity. c) Determine the yield strength at a strain offset of 0.002. d) Determine the tensile strength of this alloy. e) What is the approximate ductility, in percent elongation? f) Compute the modulus of resilience. g) Compute from the data and plot true stress versus true strain diagram.