Analysis of the parameters affecting the mechanical behaviour of straw bales under compression

Maraldi, Mirko; Molari, Luisa; Regazzi, Nicolò; Molari, Giovanni

doi:10.1016/j.biosystemseng.2017.06.007

Cited by 34 publications

(23 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Measurement of Young's modulus and Poisson's ratio are used in the study of deformation of straw bales under stress. Correlations between Young's modulus E and density q has been suggested, with E = a.q 2 proposed by Maraldi et al [51] and a power law function E = a.q b proposed by Lecompte and Duigou [49], where constant a and b depend on the orientation and type of straw bales (Fig. 7).…”

Section: Mechanical Propertiesmentioning

confidence: 89%

“…The compressive resistance of straw bales is particularly important if they are used as load-bearing structure in a building. Studies on the compressive stress-strain curve of straw bales showed a non-linear behavior in a deformed S-shape [38,[49][50][51], with a narrow curves in the beginning corresponding to the setting of the testing device to fit the sample, followed with a near linear elastic behaviour, and continued to the last stage with a perceived effect similar to hardening behavior, due to the nature of material (Fig. 6).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…Similar to Young's modulus, the Poisson's ratio of the straw bale depends on the orientation of the bales, where flat bales have a higher Poisson's ratio compared to on-edge bales [45,50,51]. Maraldi et al [50,51] reported that the sampled bales did not show a constant Poisson's ratio during the loading, where for flat bales the Poisson's ratio increased with increasing strain until reaching the maximum value and then decreasing, and for on-edge bales the Poisson's ratio continuously increased up to their breaking point (Fig. 8) [50,51].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

A review of material properties and performance of straw bale as building material

Koh

Kraniotis

2020

Construction and Building Materials

View full text Add to dashboard Cite

show abstract

Section: Mechanical Propertiesmentioning

confidence: 89%

Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

A review of material properties and performance of straw bale as building material

Koh

Kraniotis

2020

Construction and Building Materials

View full text Add to dashboard Cite

show abstract

“…Bales increase storage capacity, giving farmers greater long-term flexibility in feeding [2,3]; additionally, they can significantly reduce post-harvest biomass losses [4][5][6]. The meaningful use of straw bales is also seen in the construction sector where, being a natural material, bales may represent a good alternative to traditional thermo-acoustic insulators for sustainable buildings [7][8][9][10]. Hay bales are mainly employed in the zootechny, which albeit with important changes, is today still an essential economic sector for our society [2].…”

Section: Introductionmentioning

confidence: 99%

Study of a Large Square Baler with Innovative Technological Systems that Optimize the Baling Effectiveness

et al. 2019

View full text Add to dashboard Cite

The employment of bales is of considerable interest in the agricultural sector due to the mechanization of the production chain, the ease of their manipulation and transport, the low requirements for, and flexibility of, their storage and the low manpower requirements. Forage bales are mainly employed in zootechny, which albeit with important changes, is today still an essential economic sector for our society. The optimization of results in the zootechnical field depends largely on the feeding of the animals; in this regard, fodder-crops play a fundamental role in the European agricultural and economic sector. The soil inside the fodder is often the vehicle for a large number of CFUs (colony forming units) of bacteria of the Clostridium genus, with consequent repercussions for the welfare of the cows as well as for the quality of the milk products. The purpose of this work was to assess the performance of the large square baler HD 1270, made by the Italian manufacturer “Cicoria Square Bales”, whose main characteristic is the high cleanliness level of the dried fodder. The experimental tests carried out seem to confirm the efficacy of the technical solutions adopted for this machine. However, in order to better understand the reliability of the machine in lowering the amount of impurities and soil present in the built square bales, further tests in different working conditions should be carried out in order to statistically evaluate the influence and the mutual interaction of the operating parameters.

show abstract

“…The experience acquired on structural behavior of straw bales (Maraldi et al, 2016(Maraldi et al, , 2017(Maraldi et al, , 2018 and the studies on the structural performances of bamboo Moran et al, 2019;Kaminsky & Lawrence, 2016;Minke, 2012) make clear the extraordinary potentialities of natural materials.…”

Section: Introductionmentioning

confidence: 99%

Arising Student Consciousness Regarding Structural Properties of Natural Materials with a Structural Challenge Employing Arundo Donax

Molari¹

2019

Self Cite

View full text Add to dashboard Cite

All our actions claim now sustainable choices, and radical changes in materials need to be made. In this perspective there is the awareness that nature can help to provide viable solutions. In particular, the choice of natural materials for structures, perfectly optimized by the structural point of view, can be made. In this paper an experimental teaching experience regarding the structural behaviour of Arundo Donaxreed, made in a Structural course of Design of the Industrial Product of the University of Bologna, is reported. Arundo Donax has been firstly characterized from the mechanical point of view and then used in a structural challenge focusing on the best use of a given quantity of reed for a "bridge type structure" with fixed span and width. The main goals of the course were, on one hand (with mechanical characterization of Arundo), to give students sensitiveness on strength and stiffness of the material, on the other (with the structural challenge) were to make the student think about the combination of material properties and shape of constructions to reach the best structural performances.

show abstract

Analysis of the parameters affecting the mechanical behaviour of straw bales under compression

Cited by 34 publications

References 6 publications

A review of material properties and performance of straw bale as building material

A review of material properties and performance of straw bale as building material

Study of a Large Square Baler with Innovative Technological Systems that Optimize the Baling Effectiveness

Arising Student Consciousness Regarding Structural Properties of Natural Materials with a Structural Challenge Employing Arundo Donax

Contact Info

Product

Resources

About