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Virtual Testing and Predictive Modeling - For Fatigue and Fracture Mechanics Allowables (Paperback, 2009 ed.)
Loot Price: R3,069
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Virtual Testing and Predictive Modeling - For Fatigue and Fracture Mechanics Allowables (Paperback, 2009 ed.)
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Thematerialsusedinmanufacturingtheaerospace,aircraft,automobile,andnuclear
parts have inherent aws that may grow under uctuating load
environments during the operational phase of the structural
hardware. The design philosophy, material selection, analysis
approach, testing, quality control, inspection, and manufacturing
are key elements that can contribute to failure prevention and
assure a trouble-free structure. To have a robust structure, it
must be designed to withstand the envir- mental load throughout its
service life, even when the structure has pre-existing aws or when
a part of the structure has already failed. If the design
philosophy of the structure is based on the fail-safe requirements,
or multiple load path design, partial failure of a structural
component due to crack propagation is localized and safely
contained or arrested. For that reason, proper inspection technique
must be scheduled for reusable parts to detect the amount and rate
of crack growth, and the possible need for repairing or replacement
of the part. An example of a fail-sa- designed structure with
crack-arrest feature, common to all aircraft structural parts, is
the skin-stiffened design con guration. However, in other cases,
the design p- losophy has safe-life or single load path feature,
where analysts must demonstrate that parts have adequate life
during their service operation and the possibility of catastrophic
failure is remote. For example, all pressurized vessels that have
single load path feature are classi ed as high-risk parts. During
their service operation, these tanks may develop cracks, which will
grow gradually in a stable manner.
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