Archive of Applied Mechanics

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Material forces in microfractured bodies
Archive of Applied Mechanics - Tập 77 - Trang 75-84 - 2006
E. K. Agiasofitou, C. Dascalu
In the present work, we study the overall behavior of a microfractured elastic body within the configurational mechanics framework. Micro and macro scales are considered and scale changes are carried out by asymptotic developments homogenization. The homogenized equations of material momentum and scalar moment of material momentum are obtained. In these equations the microcrack length appears as a...... hiện toàn bộ
A novel beam finite element with singularities for the dynamic analysis of discontinuous frames
Archive of Applied Mechanics - Tập 83 - Trang 1451-1468 - 2013
S. Caddemi, I. Caliò, F. Cannizzaro, D. Rapicavoli
In this work, a model of the stepped Timoshenko beam in presence of deflection and rotation discontinuities along the span is presented. The proposed model relies on the adoption of Heaviside’s and Dirac’s delta distributions to model abrupt and concentrated, both flexural and shear, stiffness discontinuities of the beam that lead to exact closed-form solutions of the elastic response in presence ...... hiện toàn bộ
Buckling and free vibration of a side-cracked Mindlin plate under axial in-plane load
Archive of Applied Mechanics - Tập 90 - Trang 1811-1827 - 2020
Jian Xue, Yuefang Wang, Lihua Chen
In this paper, the buckling and free vibration of a Mindlin plate with a side crack are presented considering a uniaxial in-plane compressive or tensile load. The side crack is through the thickness of the plate. In the Ritz method, a series of corner functions are incorporated into the admissible functions which consist of the modified characteristic functions. With this treatment, one can descri...... hiện toàn bộ
Untersuchung von einfach gestalteten Krümmern mit Rechteckquerschnitt bei unstetigen Querschnittsänderungen
Archive of Applied Mechanics - - 1988
M. Knoch, C. Kramer
Für den Bereich des strömungstechnischen Anlagenbaus wird eine konstruktiv einfache und kostengünstig herzustellende Alternative zu den beispielsweise aus der Lüftungs- und Klimatechnik bekannten 90°-Krümmern mit Rechteckquerschnitt und gerundeten Umlenkkonturen aufgezeigt. Mit Hilfe von Druckverlustmessungen und durch Beobachtung der vereinfachten zweidimensionalen Krümmerdurchströmung wird nachg...... hiện toàn bộ
Mode shape degeneration in linear rotor dynamics for turbocharger systems
Archive of Applied Mechanics - Tập 87 - Trang 575-592 - 2016
Panagiotis Koutsovasilis
The modelling and simulation process of high-speed rotor dynamics is a rather essential task that should accompany the virtual prototype development of exhaust gas turbochargers. The system’s nonlinear nature originates primarily in the oil-film concentrated in the journal bearings, which relates to the associated gyroscopic forward and backward modes. This study focuses on linear rotor dynamics a...... hiện toàn bộ
Biegetheorie der allgemeinen Rotationsschalen mit schwacher Veränderlichkeit der Schalenkrümmungen
Archive of Applied Mechanics - Tập 33 - Trang 279-300 - 1964
H. Duddeck
Es wird eine Biegetheorie erster Näherung für die abklingenden Randstörungen von Rotationsschalen gegeben, deren Ränder mit Breitenkreisen zusammenfallen. Die erzeugende Meridiankurve kann bis auf geringe Einschränkungen beliebig sein. Es werden nur solche extremen Krümmungsänderungen ausgeschlossen, die bei üblichen bautechnischen Schalen praktisch nicht vorkommen. Die formale Behandlung der gege...... hiện toàn bộ
Lyapunov exponents and a strange attractor for the damped nonlinear mathieu equation
Archive of Applied Mechanics - Tập 61 - Trang 49-56 - 1991
S. D. Kisliakov, A. A. Popov
A single-degree-of-freedom nonlinear parametrically excited oscillator is considered. Such oscillators provide models for mechanical systems such as shells and plates under periodical load. Chaotic motions and a strange attractor are found to exist applying the theory of Lyapunov exponents. Some difficulties in practical application of the computational procedure for Lyapunov exponents are discuss...... hiện toàn bộ
Dynamic interaction between a moving vehicle and an infinite structure excited by irregularities – Fourier transforms solution
Archive of Applied Mechanics - Tập 72 Số 2 - Trang 199-211 - 2002
Bitzenbauer, J., Dinkel, J.
A new approach to calculate the dynamic interaction between a moving vehicle and an infinite structure is presented. Its main characteristics are: use of Fourier transformed domains (leading to a very general formulation of the problem), correct consideration of the motion of all components of the model; consideration of all kinds of mutual dynamic interactions between the vehicle and the track, a...... hiện toàn bộ
Eshelby tensors and effective stiffness of one-dimensional orthorhombic quasicrystal composite materials containing ellipsoidal particles
Archive of Applied Mechanics - Tập 93 Số 8 - Trang 3275-3295 - 2023
Zhiming Hu, Feng Xing, Ming Xiang, Gangbing Song, Liangliang Zhang, Yang Gao
Kopplung mechanischer Schwingungen
Archive of Applied Mechanics - Tập 5 Số 3 - Trang 157-163 - 1934
Karl Klotter
Tổng số: 3,844   
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