microcrack การใช้

• The critical stress which causes the growth of a microcrack of size a 0 is given by a general formula
• During the cyclic load several factor also contribute to microcrack generation such as frictional sliding of the mating surface, progressive wear, residual stresses at grain boundaries, stress due to shear.
• Here E is the Young's modulus, k crack is a constant dependent on the nature and shape of the microcrack and the stress applied and ? s the surface cohesive energy.
• When a microcrack reaches both the capsule containing DCPD and the catalyst, the monomer is released from the core shell microcapsule and comes in contact with exposed catalyst, upon which the monomer undergoes ring opening metathesis polymerization ( ROMP ).
• Types of leak openings include a puncture, gash, rust or other corrosion hole, very tiny " pinhole leak " ( possibly in imperfect welds ), crack or microcrack, or inadequate sealing between components or parts joined together.