Auteur Christian Hellmich
Documents disponibles écrits par cet auteur (8)
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Msaad, Y., Auteur ; Bonnet, G., Auteur ; Christian Hellmich, Éditeur scientifique |Two spalling mechanisms are generally quoted in the literature. The first one is due to pore pressure buildup. The second one, which is analyzed in this paper, is generated by restrained thermal dilation. We seek to model the channel tunnel fire[...]
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Xi, Yunping, Auteur ; Eskandari-Ghadi, Morteza, Auteur ; Suwito ; Sture, Stein ; Christian Hellmich, Éditeur scientifique |A new theory of composite damage mechanics is developed. A material with damage is considered as a composite comprised of two different phases (called matrix and inclusion). Both phases are linearly elastic isotropic materials. The matrix is con[...]
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Chen, C. M., Auteur ; Christian Hellmich, Éditeur scientifique ; Kam, T. Y., Auteur |A method is presented for identification of elastic constants for composite materials using three measured strains of a single angle-ply laminate subjected to tensile testing. In the proposed method, the trial material constants of the angle-ply[...]
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M. Ganapathi, Auteur ; Christian Hellmich, Éditeur scientifique ; N. Sundararajan ; Prakash T., Auteur |In this technical note, the critical buckling of simply supported functionally graded skew plate subjected to mechanical compressive loads is evaluated using first-order shear deformation theory in conjunction with the finite element approach. T[...]
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Christian Hellmich, Auteur ; Franz-Josef Ulm, Auteur |Understanding of ultrasonic wave propagationin bones is essential for further development of related techniques in clinical practice. As any other saturated porous medium, bone is characterized by different forms of longitudinal wave propagation[...]
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Shafi Ullah, Auteur ; Bernhard Pichler, Auteur ; Christian Hellmich, Auteur |Based on an advanced micromechanics-based nonlinear creep model for shotcrete and thin shell kinematics, measured displacement data are first converted into in-plane stress fields throughout a shotcrete tunnel shell driven according to the New A[...]
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Christian Hellmich, Auteur ; Dana Celundova, Auteur ; Franz-Josef Ulm, Auteur |We here extend the theory of microporomechanics by Dormieux et al. to multiple pore spaces. As an application, we reveal, on the basis of a recently validated multiscale elastic model for bone tissues by Fritsch and Hellmich, the effects of mult[...]
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Emmanuel Bertrand, Auteur ; Christian Hellmich, Auteur |Tissue engineering (TE) is the use of a combination of biological cells, engineering and materials methods, and of suitable biochemical and physicochemical factors, in order to improve or replace biological functions. It has brought the advent o[...]
