992
Index
Vector Laplacian, 32
Vector of unit length, 8
Vector potential, 32
Vector space, 392
Vector wave equation, 634
Vibrating beam equation, 568
Vibrating string equation, 555
Virtual displacement, 516
Virtual displacement principle, 526
Virtual strain energy, 521
Virtual stress, 521, 543
Virtual work, 518
W
Weak δ neighborhood, 93
Weak extremum, 97
Weak maximum, 97
Weak minimum, 97
Weak neighborhood, 93
Weak relative maximum, 97
Weak relative minimum, 97
Weak variation, 98
Weierstrass condition, 214
Weierstrass-Erdmann corner conditions, 297
Weierstrass form of Euler equation, 370
Weierstrass function, 213
Weierstrass strong condition, 214
Weierstrass weak condition, 214
Weighted function, 395, 473
Weighted function in domain, 473
Weighted function on boundary, 473
Weighted residual method, 472
Weight function, 395, 473
Weighting function, 395, 473
Wetting equation, 352
Work, 518
Y
Young equation, 352
Young inequality, 69
Z
Zero-divergence field, 17
Zero element, 392
Zero operator, 405
Zero tensor, 61
Zero-th order distance, 92
Zero vector, 8