Recovering Files from SD Card
Depending on how the SD card was damaged someone with some electronic skills might be able to straighten things out enough to get the files off of it. Possibly a phone repair shop? They might need to extract the memory chip circuitry from the damaged card and put it in another card, or even just re-solder some leads. Impossible to tell without actually examining the card in person

If, however, the actual memory chip in the card was damaged, you are out of luck.