Page 422 - Mechanics Analysis Composite Materials
P. 422
Subject index 407
plastic behavior 130 preimpregnated fiberglass fabric 25
plastic deformation 5 preliminary tension 24, 352
plastic Poisson’s ratio 132 prepreg 22-23
plastic potential 128, 130, 137-1 38, pressure vessel 26, 140, 179,369-370,379,
145-146 388
plastic strain 5, 8, 128-130, 137, 145 principal axes 34, 36
plasticity criterion of maximum shear principal coordinates 34, 36
stress 293 principal material axes 140,217,255,271,
plasticity theory 130 291, 309, 335
ply 55, 121 principal material coordinates 147,
ply degradation 177, 197 153-154, 161, 163, 166, 211, 218, 260,
ply interaction 201 285-287, 295, 304, 368, 374, 380
ply longitudinal modulus 1 15 principal planes 35-36
ply microstructure 81, 83 principal strains 373
ply orientation 121 principal stresses 34-36, 293, 373, 376,
ply stiffness across the fibers 91 38 1
ply stiffness in shear 91 principle of minimum strain energy 52,
ply strength 365 91, 169, 234
ply thermal conductivity 305 principle of minimum total potential
ply transverse stiffness 91 energy 51,93, 233
ply waviness 353-355 process of the failure 349
ply dissipation factor 335 processing 21
Poisson’s effect 279 processing temperature 18-1 9
Poisson’s ratio 46, 86, 96-97, 123, 208, projectile residual velocity 347
245, 252 projectile striking velocity 347
polar opening 388 properties of unidirectional composites
polyacrylonitrile (PAN) filaments I1 96
polyamide-imide (PAI) 6 proportional loading 138-1 39, 156
polyester 6 protective coatings 21
polyester resin 6. 17 pultrusion 22-23, 301
polyetheretherketone (PEEK) 6 pure shear 35, 286, 372
polyethylene 6 pure shear in a twisted tubular specimen
polyethylene fibers 7, 12 103
polyimidc resin 6, 17, 19 pure transverse shear of a cross-ply
polymeric and metal matrices 99 layer 165
polymeric composites 18, 301, 318 pyrolysis 11, 13, 21, 26
polymeric layer 124 pyrolytic carbon 21
polymeric matrices 17-1 8, 318-3 19 pyrolytic carbon matrix 24
polynomial approximation 125
polynomial criterion 28 1, 284 quadratic approximation strength
polyphenylenesulfide (PPS) 6 criterion 293
polypropylene fibers 6 quartz fibers 6, IO
polystyrene 6 quasi-homogeneous laminates 240
polysulfone (PSU) 6, 19 quasi-isotropic laminates 243, 245, 369,
potential energy 3, 43 377
potential energy of the body 46 quasi-isotropic materials 377
power approximation 130-133, 138 quasi-isotropic properties of the
power hardening law 132 laminates 244
power law for the plastic potential 146 quasi-static test 347
