Locking-free higher-order energy-momentum schemes for thermo-viscoelastic fiber-reinforced materials derived by the principle of virtual power

2019 ◽  
Author(s):  
Michael Groß ◽  
Julian Dietzsch ◽  
Chris Röbiger
Keyword(s):  
Higher Order ◽  
Fiber Reinforced ◽  
Virtual Power ◽  
Order Energy ◽  
Fiber Reinforced Materials ◽  
Principle Of Virtual Power ◽  
Reinforced Materials

Fiber symmetry

2017 ◽  
Author(s):  
David J. Steigmann
Keyword(s):  
Composite Materials ◽  
Constitutive Equation ◽  
Transversely Isotropic ◽  
Fiber Reinforced ◽  
Fiber Reinforced Materials ◽  
Reinforced Materials

This chapter develops the general constitutive equation for transversely isotropic, fiber-reinforced materials. Applications include composite materials and bio-elasticity.

scholarly journals The research on precise forming technology of “λ” type composite skin

2021 ◽  
Vol 30 ◽  
pp. 263498332199474
Author(s):  
Qiang Guo ◽  
Kai He ◽  
Hengyuan Xu ◽  
Youyi Wen
Keyword(s):  
Carbon Fiber ◽  
Middle Layer ◽  
Fiber Reinforced ◽  
Process Verification ◽  
Forming Technology ◽  
Fiber Reinforced Materials ◽  
New Type ◽  
Carbon Fiber Reinforced ◽  
Type Composite ◽  
Reinforced Materials

With the application of “ λ” type composite skin becoming more and more extensive and diversified, its precise forming technology is also widely concerned. This article mainly solves the quality problems of “ λ” type corner area, such as delamination dispersion and surface wrinkle, which exist in reality commonly in the manufacturing process. The prepreg is heated along the corner area of the tooling to solve the problem that prepreg is difficult to be compacted due to the large modulus of carbon fiber in “ λ” type corner area. Furthermore, two precompaction tests are creatively increased at 16 layers (middle layer) and 32 layers (last layer) for the thick structure, respectively, to ensure the compaction effect of the blank. In addition, combined with the characteristics of highly elastic rubber and carbon fiber-reinforced materials, a new type of soft mold structure with proper flexibility and good stiffness is proposed innovatively through the reasonable placement of carbon fiber-reinforced materials and the setting of exhaust holes according to the structure characteristics of “ λ” type root skin. Through further process verification, it is shown that the improved process has effectively solved the problems of wrinkles and internal delamination at the sharp corners of parts and realized zero-defect manufacturing of “ λ” type root skin for the first time.

Boundary Layers in Fiber-Reinforced Materials

1973 ◽  
Vol 40 (2) ◽  
pp. 518-522 ◽  
Author(s):  
G. C. Everstine ◽  
A. C. Pipkin
Keyword(s):  
Boundary Layers ◽  
Fiber Reinforced ◽  
Fiber Reinforced Materials ◽  
Reinforced Materials

Development of Test Methods for Measuring Damping of Fiber-Reinforced Materials

1970 ◽  
Author(s):  
A. J. Gustafson ◽  
L. Thomas Mazza ◽  
Robert L. Rodgers ◽  
Edgar H. McIlwean
Keyword(s):  
Test Methods ◽  
Fiber Reinforced ◽  
Fiber Reinforced Materials ◽  
Reinforced Materials
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