Mechanical behaviour of materials 4 /

Proceeding

Strain gradient models for viscoelastic behaviour at large deformation

SIGLEAvailable from TIB Hannover: F04B971+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Strain gradient and gradient of internal variable models

SIGLEAvailable from TIB Hannover: F04B972+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Data from: Tree crickets optimize the acoustics of baffles to exaggerate their mate-attraction signal

Object manufacture in insects is typically inherited, and believed to be highly stereotyped. Optimization, the ability to select the functionally best material and modify it appropriately for a specific function, implies flexibility and is usually thought to be incompatible with inherited behaviour. Here we show that tree-crickets optimize acoustic baffles, objects that are used to increase the effective loudness of mate-attraction calls. We quantified the acoustic efficiency of all baffles within the naturally feasible design space using finite-element modelling and found that design affects efficiency significantly. We tested the baffle-making behaviour of tree crickets in a series of experimental contexts. We found that given the opportunity, tree crickets optimised baffle acoustics; they selected the best sized object and modified it appropriately to make a near optimal baffle. Surprisingly, optimization could be achieved in a single attempt, and is likely to be achieved through an inherited yet highly accurate behavioural heuristic.,Zip file of complete data setThe data files include: 1) Data on three behavioural experiments on baffling behaviour: two lab and one field experiment. 2) Data on size distribution of baffle leaves. 3) Model reports on the finite element models used in the study 4) Vibrometry data and simultaneous sound recording data. Data files are named intuitively, as are internal headers and descriptors are provided where necessary.TreeCricketBaffleOptimization_DataDepo.zip

Data from: Tree crickets optimize the acoustics of baffles to exaggerate their mate-attraction signal

Object manufacture in insects is typically inherited, and believed to be highly stereotyped. Optimization, the ability to select the functionally best material and modify it appropriately for a specific function, implies flexibility and is usually thought to be incompatible with inherited behaviour. Here we show that tree-crickets optimize acoustic baffles, objects that are used to increase the effective loudness of mate-attraction calls. We quantified the acoustic efficiency of all baffles within the naturally feasible design space using finite-element modelling and found that design affects efficiency significantly. We tested the baffle-making behaviour of tree crickets in a series of experimental contexts. We found that given the opportunity, tree crickets optimised baffle acoustics; they selected the best sized object and modified it appropriately to make a near optimal baffle. Surprisingly, optimization could be achieved in a single attempt, and is likely to be achieved through an inherited yet highly accurate behavioural heuristic.,Zip file of complete data setThe data files include: 1) Data on three behavioural experiments on baffling behaviour: two lab and one field experiment. 2) Data on size distribution of baffle leaves. 3) Model reports on the finite element models used in the study 4) Vibrometry data and simultaneous sound recording data. Data files are named intuitively, as are internal headers and descriptors are provided where necessary.TreeCricketBaffleOptimization_DataDepo.zip