A panel assembly (100,300) adapted to absorb a blast effect, the panel assembly (100,300) comprising, a panel (110,210,310) adapted to be displaceably mounted to a frame (120,320); an extendable connecting assembly (130,330) extending from the panel (100,300) and adapted to be attached to the frame (120,230,320) so as to mount the panel (100,300) to the frame (120,320), the extendable connecting assembly (130,230,330) is adapted to extend in a longitudinal direction and in a controlled manner, wherein the extendable connecting assembly (130,230,330) comprises, a controlling portion (140,340) connected to the panel (110,210,310), and a connecting portion (150,350) adapted to be attached to the frame (120,320), wherein the controlling portion (140, 340) is adapted to control the extension of the connecting portion (150, 350) from the controlling portion (140, 340), characterized in that the connecting portion (150,350) is glidably coupled to the controlling portion (140,340), whereby the connecting portion (150,350) extends through the controlling portion (140,340), the controlling portion (140,340) comprises a clamp adapted to clamp the connecting portion (150,350) to restrain the movement of the connecting portion (150,350) within the controlling portion (140,340), wherein, when the panel (110,210,310) receives a blast, the connecting portion (150,350) glides through the controlling portion (140,340), and the displacement of the connecting portion (150,350) is decelerated in a controlled manner; wherein the extendable connecting assembly (130,330) is adapted to extend in a controlled manner to decelerate the movement of the panel (110,210,310) when receiving the blast effect. a panel (110,210,310) adapted to be displaceably mounted to a frame (120,320); an extendable connecting assembly (130,330) extending from the panel (100,300) and adapted to be attached to the frame (120,230,320) so as to mount the panel (100,300) to the frame (120,320), the extendable connecting assembly (130,230,330) is adapted to extend in a longitudinal direction and in a controlled manner, wherein the extendable connecting assembly (130,230,330) comprises, a controlling portion (140,340) connected to the panel (110,210,310), and a connecting portion (150,350) adapted to be attached to the frame (120,320), wherein the controlling portion (140, 340) is adapted to control the extension of the connecting portion (150, 350) from the controlling portion (140, 340), characterized in that the connecting portion (150,350) is glidably coupled to the controlling portion (140,340), whereby the connecting portion (150,350) extends through the controlling portion (140,340), the controlling portion (140,340) comprises a clamp adapted to clamp the connecting portion (150,350) to restrain the movement of the connecting portion (150,350) within the controlling portion (140,340), wherein, when the panel (110,210,310) receives a blast, the connecting portion (150,350) glides through the controlling portion (140,340), and the displacement of the connecting portion (150,350) is decelerated in a controlled manner; a controlling portion (140,340) connected to the panel (110,210,310), and a connecting portion (150,350) adapted to be attached to the frame (120,320), wherein the controlling portion (140, 340) is adapted to control the extension of the connecting portion (150, 350) from the controlling portion (140, 340), characterized in that the connecting portion (150,350) is glidably coupled to the controlling portion (140,340), whereby the connecting portion (150,350) extends through the controlling portion (140,340), the controlling portion (140,340) comprises a clamp adapted to clamp the connecting portion (150,350) to restrain the movement of the connecting portion (150,350) within the controlling portion (140,340), wherein, when the panel (110,210,310) receives a blast, the connecting portion (150,350) glides through the controlling portion (140,340), and the displacement of the connecting portion (150,350) is decelerated in a controlled manner; wherein the extendable connecting assembly (130,330) is adapted to extend in a controlled manner to decelerate the movement of the panel (110,210,310) when receiving the blast effect.