▁book ▁dedicated ▁to ▁his ▁ret irement , ▁R . D . ▁Mind lin ▁and ▁App lied ▁Mechan ics ▁( Per g am on , ▁ 1 9 7 4 ). ▁These ▁include : ▁ ▁Ph oto el astic ity ▁and ▁experimental ▁mechan ics ▁ ▁Class ical ▁three - dimensional ▁el astic ity ▁( e . g ., ▁Mind lin ' s ▁problem ) ▁ ▁General ized ▁el astic ▁continu a ▁( St rain - gradient ▁and ▁couple - str ess ▁theory ) ▁ ▁F rict ional ▁contact ▁and ▁gran ular ▁media ▁ ▁W aves ▁and ▁v ibr ations ▁in ▁is otrop ic ▁and ▁an is otrop ic ▁pl ates ▁( M ind lin ' s ▁Pl ate ▁Theory ) ▁ ▁W ave ▁propag ation ▁in ▁ro ds ▁and ▁cyl ind ers ▁ ▁Theory ▁of ▁electro - el astic ity ▁and ▁pie zo elect ric ▁cry stal ▁reson ators ▁ ▁Cry stal ▁lattice ▁theories ▁ ▁Service ▁Mind lin ▁served ▁with ▁dev otion ▁the ▁profession ▁which ▁he ▁made ▁his ▁life ' s ▁work , ▁through ▁his ▁research , ▁his ▁teaching , ▁his ▁advis ory ▁capacity ▁to ▁numerous ▁government ▁ag encies , ▁and ▁his ▁activities ▁in ▁various ▁scientific ▁and ▁technical ▁soci eties . ▁Among ▁the ▁latter , ▁mention ▁is ▁war r anted ▁of ▁the ▁following ▁positions ▁he ▁held ▁at ▁various ▁times : ▁▁ ▁In ▁the ▁American ▁Society ▁of ▁Mechan ical ▁Engine ers ▁( AS ME ), ▁chairman , ▁App lied ▁Mechan ics ▁Division ; ▁member , ▁Publications ▁Committee , ▁Engineering ▁Soci eties ▁Mon ograph s ▁Committee