Justo et al 2017a - Revision history

Materiales.Compuestos at 14:47, 20 September 2022

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Materiales.Compuestos at 14:45, 20 September 2022

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Materiales.Compuestos at 14:44, 20 September 2022

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Materiales.Compuestos at 14:43, 20 September 2022

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Scipediacontent at 13:24, 29 April 2022

2022-04-29T13:24:56Z

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Scipediacontent: Scipediacontent moved page Draft Content 122780671 to Justo et al 2017a

2022-03-31T12:58:06Z

Scipediacontent moved page Draft Content 122780671 to Justo et al 2017a

Scipediacontent: Created page with "== Abstract == Results and conclusions of the analysis of a campaign of pull-off tests of single T-stiffened specimens are shown in this paper. The test intend to reproduce i..."

2022-03-31T12:58:04Z

Created page with "== Abstract == Results and conclusions of the analysis of a campaign of pull-off tests of single T-stiffened specimens are shown in this paper. The test intend to reproduce i..."

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== Abstract ==

Results and conclusions of the analysis of a campaign of pull-off tests of single T-stiffened specimens are shown in this paper. The test intend to reproduce in a specimen the symmetrical local deformation shape that occurs in a stiffened panel during its postbuckling evolution.
Four different groups have been considered combining two geometries and two stacking sequences for the skin and stringer. A total of 10 specimens have been tested. Tests were monitored with strain gauges. Visual inspections were performed during the process to detect the presence of debonding and/or delamination and to study the damage evolution. After the colapse, visual and microscopic analysis (optical and electronic) of the fracture surfaces were carried out.
Inspections have shown the appearance of migrations of cracks from the skin-stiffening interface to delaminations between the first layers of the skin or vice versa. The effect that the different configurations of each specimen had on the onset and development of the damage has also been studied.

== Full document ==
<pdf>Media:Draft_Content_122780671native-articles-59.pdf</pdf>

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 El ensayo se realizó en una máquina universal electromecánica INSTRON 4482. Los dos bordes longitudinales de la piel (paralelos al rigidizador) se anclaron a la mordaza inferior y el alma del rigidizador a la mordaza superior, Figura 3. Para medir la carga se han utilizado dos células de carga diferentes, de 5 y 10 kN (para las probetas A y B respectivamente). Los ensayos se realizaron a una velocidad de 0.5 mm/min.
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 Los ensayos realizados en este estudio se han diseñado con la intención de reproducir localmente la situación simétrica [6], véase Figura 1, que presentan los paneles rigidizados durante su evolución de postpandeo. En este trabajo se considera el caso sencillo en el que la curvatura a lo largo del larguerillo/rigidizador es pequeña.
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 A su vez, el modelo permite predecir que, para las probetas tipo A, la aparición de un despegue en el extremo de un ala incrementa las solicitaciones sobre dicho extremo, mientras que en el ala opuesta se mantienen constantes o crecen ligeramente. Las evoluciones para los modelos de las probetas A1 y A2 se muestran en la Figura 15.
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 <span style="text-align: center; font-size: 75%;">'''Figura 15.''' Evolución de las acciones en la intercara, según el modelo de barras, para las probetas de las series A1 y A2.</span></div>

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