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Digitale Medien

J-integral analysis of cord-rubber serpentine belt using neural-network-based material modelling (2005)

SONG, G. ; CHANDRASHEKHARA, K. ; BREIG, W. F. ; [weitere]

PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. : Blackwell Science Ltd

Fatigue & fracture of engineering materials & structures 28 (2005), S. 0

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ISSN: 1460-2695

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Maschinenbau

Notizen: A known factor that limits the performance of automotive front-end accessory serpentine belt drive is cracking of the elastomer located in the rib tip. In this paper, fracture experiments were conducted using single-edge notched tension (SENT) specimens to study the fracture behaviour of a belt rib compound. A finite-element modelling method utilizing singular elements for crack in rubber solid was proposed and implemented in both plane-stress and 3D solid models using ABAQUS. A newly developed neural-network-based model was used to represent a nonlinear elastic belt rib rubber compound. The crack finite-element model, along with the neural-network-based material model, was verified with analytical and experimental results. A global–local finite-element procedure was developed to evaluate the J-integral for mode-I through-the-thickness crack in V-ribbed belt rib. Effects of pre-crack length, pulley pre-load and backside pulley displacement were investigated.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1460-2695.2005.00917.x

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Digitale Medien

Cleavage of Zinc Single Crystals induced by Stress Waves (1967)

OLIVER, L. R. ; ARMSTRONG, R. W. ; CLIFTON, R. J. ; [weitere]

[s.l.] : Nature Publishing Group

Nature 216 (1967), S. 910-910

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Zinc crystals2 with a diameter of about 8 mm, a length of about 60 mm and with their potential cleavage plane (0001) perpendicular to the rod axis, were loaded with the stress wave produced by hitting a transmitter bar with a flat-faced projectile, as shown in Fig. 1. Fractures were produced by the ...