Discuss resilience and proof resilience and Module of resilience with detail

what is the Rockwell hardness test

Select all true statements. ANFO explosive is often preferred because using bulk explosives is cheaper, less labor intensive during loading and they fill the entire blast hole diameter. Emulsion explosives should not be used in strong and massive rocks where a high detonation pressure and high detonation velocity is required to break the rock. During rock fragmentation by blasting, the reflection of the compression wave at the free face into tension and shear waves contributes to additional cracking between the free face and the blast hole. When metals or other reactive elements are present in the composition of an explosive, less oxygen is required for a an oxygen-balanced reaction.

You have been asked to obtain an object/structure/component that has failed (It may come fromyour home, workshop, an automobile repair shop, a machine shop, and so on) and investigate to:1. Determine the cause and type of failure (i.e., simple fracture, fatigue, creep).2. What are the working and environmental conditions that causes the failure?3. Propose measures that can be taken to prevent future incidents of this type of failure.4. After you have determined the failure type of your case study, your leader asked you to writeshortly about the other mechanisms of failures.

Explain why online Al is wrong please don't use it. a) "If the most conservative fatigue criterion were used for infinite life design, the first cycle yield check is not needed." True or False b) It is easier to find the asymptotic value of fatigue strength as the endurance limit on the S-N curve of a brass alloy (Cu70Zn30) than on the S-N curve of an AISI 1045 steel. True or False

2 m B specimen How did you find the air resistance for the impact test experiment?

Strain energy is the A. energy stored in a body when strained within elastic limits B. energy stored in a body when strained upto the breaking of a specimen C. maximum strain energy which can be stored in a body D. proof resilience per unit volume of a material

QUESTION 18 A chemicals company is looking to optimise the materials selection for their synthesis vessel with safety being the key priority. The tank can be treated as a small thin-walled spherical pressure vessel and the engineers are considering a 'yield before break' design concept. Given that a crack of length will propagate by fast fracture when the stress intensity factor reaches the fracture toughness of the material select the correct materials property index relevant to this design criterion. Fracture toughness K₁=Y₁₁√√ IC O M= O M= OM= OM= O M= OM= K f P K 2 IC K IC 6 f 6 P K f IC σα y K IC 2 f IC