young's modulus lab

Please answer the question clearly, stating how you chose the formulas and what each variable represents. Thank you!

How do I solve parts a and b

A new rigid biomaterial is developed and tested as a candidate replacement tissue for volumetric loss of bone. To evaluate biomechanics, the biomaterial is stretched in the vertical direction in an unconfined configuration. However, you are unsure whether the biomaterial shows isotropic or anisotropic material properties. Write expressions for normal strains €11, 22, and 833 for orthotropic material symmetry. Next, write expressions also for normal strains E11, E22, and E33 for isotropy, stating your assumptions that allow you to simplify the moduli of elasticity and Poisson's ratios. To evaluate the importance of anisotropy, you decide to evaluate error in 833 measured in the orthotropic case, compared against the isotropic case. If we know that Poisson's ratios for anisotropy change by 5%, i.e., U12 =U21= U13 = U31 = U23 = U32 = 1.05 u, determine further how E33 changes. Comment on whether the change in E33 is below 10%, considered "acceptable". For an incompressible, isotropic…

QUESTION 15 A bimetallic bar is made of two equal length steel and brass bars of same width firmly bonded together. The cross-sectional area of the brass bar is twice that of the steel bar. The Young's modulus of steel is twice that of brass. The coefficient of linear expansion of brass is twice that of steel. When the compound bar is subjected to a temperature rise of 50°C, what is the ratio of stress generated in steel to stress generated in brass? Note: Please study lecture slides and tutorial problem on thermal stress - strain O a. 1:(-2) O b. 1 : (-1) C. 2: (-1) O d.4:(-1) QUESTION 16

A sample of crosslinked polvisoprene rubber undergoes a constant strain rate axial tension experiment The initial sample measurements are 3.60 cm gauge length (axial direction); 0.b2 cm wide; 0.1/ cm thick:

6. State your answers to the following questions.Strain Gauge represents the deformation of a material through a change in resistance. If so, explain how temperature will affect the strain gauge in the experimental environment.①:In this experiment, the Strain Gauge measures the strain in micro units. Explain one possible error factor when applying a load by hanging a weight on the material with the strain gauge attached. (Hint: It is easy to shake by hanging the weight using a thread)①:

100KN A force of 100 KN is applied on a column as shown. The column is made from two materials. [The top one is a functionally graded material with a linearly varying modulus and densities. Its length is 2 meter. The density and elastic modulus of the top material at point A are 2700 А kg m3 and 72 Gpa, respectively. The density and modulus of kg the top material at point B are 3000 and 100 Gpa. The m 3 В kg bottom material is made from steel (density =7800 and m2 modulus=200GPA). The length of the bottom material is 1m. The cross-sections of both materials comprising the column are cylindrical with a diameter of 0.5 m. C ID (oijj + bị = 0) and considering the weight and the applied force determine: Using equilibrium while The stress distribution in both members

Help me with this practical on torsion apparatus

Determine the tension developed in the cable AC required to support the traffic light Express your answer to three significant figures and include the appropriate units. HA ? FAC = Value Units Submit Request Answer Part C Figure 1 of 1 Determine the tension developed in the cable AD required to support the traffic light Express your answer to three significant figures and include the appropriate units. 6 m ? HA 3 m FAD = Value Units 4 m 4 m Submit Request Answer 3 m 4 m 6 m 4 m 3 m y Provide Feedback

A long steel rod is placed horizontally between two supports, one at each end. The rod bends a little in the center. Which property of this rod can be used to estimate how  much the rod should bend at the center? 1. Its Shear Modulus   2. Its Young's Modulus   3. All of these Moduli can be used to compute how much it bends.   4. Its Bulk Modulus.

. An elliptical hair, 10.0 cm long, has the following semi-diameters A = 35\mu , B=25 \mu When the hair was extended from 10.0 cm to 10.1 cm at 50% RH the force on the hair increased by 11.3 grams. What is the modulus of elasticity in GPa, (round off) Group of answer choices 10.0 1.0 8.0 4.0

For the stress-strain curves below, which statements are correct? Stress (MPa) 60 50 40 30 20 10 0 0 A B C. 1 2 3 4 Strain 5 6 7 8 a. The mechanical behavior shown in C is that of an elastomer with low elastic modulus b. While the deformation in polymer A is fully reversible until breakage, polymer B and C only display reversible deformation until 0.1X and 5x elongations respectively The mechanical behavior shown in B is that of an elastomer with low elasticity d. Polymer B and C have an elastic behavior whereas A has a plastic behavior e. The polymer with the necking behavior has the highest strength Of. The polymer with brittle nature is the one that possesses the highest elastic modulus

I need assistance designing three structural models on Fusion 360 (bamboo-inspired, bone-inspired, and a control cylinder) for a mechanics project. These models will be tested under compression to compare their load-bearing capacity, energy absorption, and failure modes. Here are the specific details and requirements for each design: General Requirements: External Dimensions: All models must have the same outer dimensions: height = 15 cm, diameter = 5 cm. Material Volume: Ensure each design uses approximately the same material volume (e.g., relative density = 30% of the total volume). If you have any other ideas on how to ensure the test is fair between all 3 samples please note it! File Format: Provide the designs as STL files compatible with 3D printing or a step-by-step process.  Design Specifications: 1. Control Cylinder: A simple hollow cylinder with: Wall Thickness: 2 mm. Inner Diameter: 4.6 cm (to maintain the outer diameter and wall thickness). No additional…

A railroad track is laid at a temperature of 10°C with gaps of 0.008 m between the ends of the rails. The rails are 20 m long. Coefficient of thermal expansion is 11.25 x 106/°C. Modulus of elasticity = 200000 MPa. Which of the following gives the actual deformation of the rails that will result from a temp. of 65°C? %3D Select one: O a. 0.0124 m O b. 0.0214 m O c. 0.0142 m O d. 0.0022 m