Transcription of Plastic Failure through Environmental Stress Cracking
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CONSULTANT S CORNERP lastic Failure through EnvironmentalStress CrackingESC, the Plastic killer, is a frequent cause of field failuresBy Jeffrey JansenThe Madison Group, Madison, Wisconsin, USA Environmental Stress Cracking (ESC) is considered a lead-ing cause of Plastic part Failure . It is the prematureembrittlement and subsequent Cracking of a plasticdue to the simultaneous and synergistic action of Stress andcontact with a chemical agent. Because of the frequencyand severity of ESC Failure , it has been nicknamed the plastickiller (see, for example, Figure 1).
undergo stress cracking in air, also known as creep rupture, given sufficient time. The chemical simply accelerates the stress cracking. Because of this, environmental stress cracking
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