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Virtual Testing and Predictive Modeling
  • Language: en
  • Pages: 420

Virtual Testing and Predictive Modeling

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 requ...

Fracture Mechanics of Metals, Composites, Welds, and Bolted Joints
  • Language: en
  • Pages: 425

Fracture Mechanics of Metals, Composites, Welds, and Bolted Joints

In the preliminary stage of designing new structural hardware to perform a given mission in a fluctuating load environment, there are several factors that the designer should consider. Trade studies for different design configurations should be performed and, based on strength and weight considerations, among others, an optimum configuration selected. The selected design must withstand the environment in question without failure. Therefore, a comprehensive structural analysis that consists of static, dynamic, fatigue, and fracture is necessary to ensure the integrity of the structure. Engineers must also consider the feasibility of fabricating the structural hardware in the material selection process. During the past few decades, fracture mechanics has become a necessary discipline for the solution of many structural problems in which the survivability of structure containing pre-existing flaws is of great interest. These problems include structural failures resulting from cracks that are inherent in the material, or defects that are introduced in the part due to improper handling or rough machining, that must be assessed through fracture mechanics concepts.

Fatigue and Fracture Mechanics of High Risk Parts
  • Language: en
  • Pages: 386

Fatigue and Fracture Mechanics of High Risk Parts

In the preliminary stage of designing new structural hardware that must perform a given mission in a fluctuating load environment, there are several factors the designers should consider. Trade studies for different design configurations should be performed and, based on strength and weight considerations, among others, an optimum configuration selected. The selected design must be able to withstand the environment in question without failure. Therefore, a comprehen sive structural analysis that consists of static, dynamic, fatigue, and fracture is necessary to ensure the integrity of the structure. During the past few decades, fracture mechanics has become a necessary discipline for the sol...

SAMPE Symposium and Exhibition
  • Language: en
  • Pages: 2637

SAMPE Symposium and Exhibition

None

Probabilistic Aspects of Life Prediction
  • Language: en
  • Pages: 279

Probabilistic Aspects of Life Prediction

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Probabilistic Aspects of Life Prediction
  • Language: en
  • Pages: 292

Probabilistic Aspects of Life Prediction

As fatigue and fracture mechanics approaches are used more often for determining the useful life and/or inspection intervals for complex structures, realization sets-in that all factors are not well known or characterized. Indeed, inherent scatter exists in initial material quality and in material performance. Furthermore, projections of component usage in determination of applied stresses are inexact at best and are subject to much discrepancy between projected and actual usage. Even the models for predicting life contain inherent sources of error based on assumptions and/or empirically fitted parameters. All of these factors need to be accounted for to determine a distribution of potential lives based on combination of the aforementioned variables, as well as other factors. The purpose of this symposium was to create a forum for assessment of the state-of-the-art in incorporating these uncertainties and inherent scatter into systematic probabilistic methods for conducting life assessment.

Applied Mechanics Reviews
  • Language: en
  • Pages: 1052

Applied Mechanics Reviews

  • Type: Book
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  • Published: 1985
  • -
  • Publisher: Unknown

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Scientific and Technical Aerospace Reports
  • Language: en
  • Pages: 744

Scientific and Technical Aerospace Reports

  • Type: Book
  • -
  • Published: 1981
  • -
  • Publisher: Unknown

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California. Court of Appeal (1st Appellate District). Records and Briefs
  • Language: en
  • Pages: 116

California. Court of Appeal (1st Appellate District). Records and Briefs

  • Categories: Law
  • Type: Book
  • -
  • Published: Unknown
  • -
  • Publisher: Unknown

None

The Sun Never Sets on the US Empire
  • Language: en
  • Pages: 186

The Sun Never Sets on the US Empire

Not long ago, the United States won the Cold War against the former Soviet Union, dividing it into smaller states; but now the country is experiencing turmoil, both Russia and China are gaining speed, putting the US in danger. The Europeans are posing a risk as well, aiming to reclaim the power and influence they once had. It was December 2029, the American public was confused, their economy was in dire straits, and unemployment was higher than it had ever been. Homelessness now affected the millions, and tents could be seen all over the country, especially in major cities like Los Angeles, New York, and Detroit. The US' doctrine is to prevent any other country from having influence and powe...