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Calculation of guided wave interaction with nonlinearities and generation of harmonics in composite structures through a wave finite element method (2017)
Journal Article
Chronopoulos, D. (2018). Calculation of guided wave interaction with nonlinearities and generation of harmonics in composite structures through a wave finite element method. Composite Structures, 186, https://doi.org/10.1016/j.compstruct.2017.12.034

The extensive usage of composite materials in modern industrial applications implies a great range of possible structural failure modes for which the structure has to be frequently and thoroughly inspected. Nonlinear guided wave inspection techniques... Read More about Calculation of guided wave interaction with nonlinearities and generation of harmonics in composite structures through a wave finite element method.

Accurate structural identification for layered composite structures, through a wave and finite element scheme (2017)
Journal Article
Chronopoulos, D., Droz, C., Apalowo, R., Ichchou, M., & Yan, W. (2017). Accurate structural identification for layered composite structures, through a wave and finite element scheme. Composite Structures, 182, https://doi.org/10.1016/j.compstruct.2017.09.062

We present for the first time an approach for identifying the geometric and material characteristics of layered composite structures through an inverse wave and finite element approach. More specifically, this Non-Destructive Evaluation (NDE) approac... Read More about Accurate structural identification for layered composite structures, through a wave and finite element scheme.

The impact of temperature on wave interaction with damage in composite structures (2017)
Journal Article
Apalowo, R., Chronopoulos, D., Ichchou, M., Essa, Y., & Martin De La Escalera, F. (2017). The impact of temperature on wave interaction with damage in composite structures. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 231(16), https://doi.org/10.1177/0954406217718217

The increased use of composite materials in modern aerospace and automotive structures, and the broad range of launch vehicles’ operating temperature imply a great temperature range for which the structures has to be frequently and thoroughly inspect... Read More about The impact of temperature on wave interaction with damage in composite structures.

Examination of acoustic insulation of composite metamaterials with negative stiffness elements inclusions (2017)
Conference Proceeding
Ampatzidis, T., & Chronopoulos, D. (2017). Examination of acoustic insulation of composite metamaterials with negative stiffness elements inclusions.

Damping is one of the most important properties of materials, being responsible for increased durability and conmfort of the structures. In this paper the damping enhancement of materials with internal oscillators is examined. Wave Finite Element (WF... Read More about Examination of acoustic insulation of composite metamaterials with negative stiffness elements inclusions.

Parametric study of control of frequency banded behaviour of periodic pressurised composite structures (2017)
Conference Proceeding
Ampatzidis, T., & Chronopoulos, D. (2017). Parametric study of control of frequency banded behaviour of periodic pressurised composite structures.

Periodic structures are very common in engineering, such as airplane fuselages and train rails. This periodicity has been observed to be the cause of banded frequency response after mechanical excitation. This response can be engineered so that noise... Read More about Parametric study of control of frequency banded behaviour of periodic pressurised composite structures.

Prediction of temperature dependent wave dispersion and interaction properties in composite structures (2017)
Conference Proceeding
Apalowo, R., Ampatzidis, T., Chronopoulos, D., Ichchou, M., Essa, Y., & De La Escalera, F. (2017). Prediction of temperature dependent wave dispersion and interaction properties in composite structures.

Composite structures are widely used for aerospace and automotive applications. These operate within a broad temperature range varying between -100_C to 200_C for launch vehicles and -60_C to +50_C for aircraft and automotive vehicles. Hereby, the se... Read More about Prediction of temperature dependent wave dispersion and interaction properties in composite structures.

Wave sensitivity analysis for periodic and arbitrarily complex composite structures (2017)
Journal Article
Chronopoulos, D., Collet, M., & Ichchou, M. (in press). Wave sensitivity analysis for periodic and arbitrarily complex composite structures. Engineering Computations, https://doi.org/10.1108/EC-06-2016-0200

Purpose: This paper presents the development of a numerical continuum-discrete approach for computing the sensitivity of the waves propagating in periodic composite structures. The work can be directly employed for evaluating the sensitivity of the s... Read More about Wave sensitivity analysis for periodic and arbitrarily complex composite structures.

Thermal effect on wave interaction in composite structures (2017)
Conference Proceeding
Apalowo, R., Chronopoulos, D., & Thierry, V. (2017). Thermal effect on wave interaction in composite structures.

There exist a wide range of failure modes in composite structures due to the increased usage of the structures especially in aerospace industry. Moreover, temperature dependent wave response of composite and layered structures have been continuously... Read More about Thermal effect on wave interaction in composite structures.

Wave interaction with defects in pressurized composite structures (2017)
Conference Proceeding
Apalowo, R., Chronopoulos, D., & Tanner, G. (2017). Wave interaction with defects in pressurized composite structures.

A wave finite element (WFE) and finite element (FE) based computational method is presented by which the dispersion properties as well as the wave interaction coefficients for one-dimensional structural system can be predicted. The structural system... Read More about Wave interaction with defects in pressurized composite structures.