Linear dynamic response of nanobeams accounting for higher gradient effects
سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 390
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شناسه ملی سند علمی:
JR_JACM-2-2_001
تاریخ نمایه سازی: 9 خرداد 1396
چکیده مقاله:
Linear dynamic response of simply supported nanobeams subjected to a variable axial force is assessed by Galerkin numerical approach. Constitutive behavior is described by three functional forms of elastic energy densities enclosing nonlocal and strain gradient effects and their combination. Linear stationary dynamics of nanobeams is modulated by an axial force which controls the global stiffness of nanostrucure and hence its angular frequencies. Influence of the considered elastic energy densities on dynamical response is investigated and thoroughly commented.
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نویسندگان
Dario Abbondanza
Dipartimento di ingegneria meccanica e aeronautica, La Sapienza , Rome, Italy
Daniele Battista
Dipartimento di ingegneria meccanica e aeronautica, La Sapienza , Rome, Italy
Francescogiuseppe Morabito
Dipartimento di ingegneria meccanica e aeronautica, La Sapienza , Rome, Italy
Chiara Pallante
Dipartimento di ingegneria meccanica e aeronautica, La Sapienza , Rome, Italy