Zobrazeno 1 - 10
of 35
pro vyhledávání: '"John T. Wang"'
Autor:
John T. Wang, Tzikang Chen
Publikováno v:
Journal of Spacecraft and Rockets. 44:538-544
Techniques for simulating an assembly process of lattice structures with curved battens were developed. The shape of the curved battens, the tension in the diagonals, and the compression in the battens were predicted for the assembled model. To be ab
Publikováno v:
Composites Science and Technology. 66:2557-2565
This study applies the crack growth resistance curve (R-curve) method to predict the residual strength of a composite fuselage panel with discrete source damage. The R-curve is constructed from the energy release rates computed from cracked tensile p
Autor:
David W. Sleight, Charles E. Harris, Edward H. Glaessgen, James R. Reeder, Ivatury S. Raju, John T. Wang
Publikováno v:
Journal of Spacecraft and Rockets. 42:613-627
A summary of the failure analyses and testing that were conducted to determine the cause of the X-33 liquidhydrogen tank failure is presented. Ply-level stress analyses were conducted to explain the formation of microcracks in the plies of the inner
Publikováno v:
Journal of Spacecraft and Rockets. 42:287-298
Thin solar sail membranes of very large span are being envisioned for near-term space missions. One major design issue that is inherent to these very flexible structures is the formation of wrinkling patterns. Structural wrinkles may deteriorate a so
Publikováno v:
AIAA Journal. 38:868-874
A computationally efficient approach combining a plate crack-tip element model and a mixed-mode separation technique was developed to calculate mode mixities and stress intensity factors for delamination in platelike composite structures. The crack-t
Publikováno v:
Composites Engineering. 5:277-296
Fracture mechanics analyses of composite skin-stiffener debond configurations using shell elements are presented. Two types of debond configurations are studied: a flange skin strip debond configuration and a skin-stiffener debond configuration. The
Autor:
John T. Wang
Publikováno v:
Journal of Engineering Materials and Technology. 135
This study investigates some technical issues related to the use of cohesive zone models (CZMs) in modeling the fracture of materials with negligible plasticity outside the fracture process zone. These issues include: (1) why cohesive laws of differe
Publikováno v:
53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference20th AIAA/ASME/AHS Adaptive Structures Conference14th AIAA.
NASA Langley Research Center and The Boeing Company are developing an innovative composite structural concept, called PRSEUS, for the flat center section of a future environmentally friendly hybrid wing body (HWB) aircraft. The PRSEUS (Pultruded Rod
Publikováno v:
Journal of Reinforced Plastics and Composites. 12:128-138
The feasibility of changing the bolt shape from circular to elliptical in order to increase the joint strength was investigated. An analytical method using a cosine series to represent the bearing stress was derived, and a boundary collocation method