Yelling will not stop the chewing. Many a dog has died from their chewing habit, swallowing large parts of pillows, blankets, etc. and getting them lodged in their intestines. Sometimes expensive surgery saves them and sometimes it doesn't. If you are in a position to offer advice, you might mention that to her.
Meanwhile, I like the idea of a wall hanging or an offer to store the quilt until the dog has outgrown the chewing habit. I'm assuming the dog is more or less a puppy. That said, it can take a couple of years to outgrow the chewing and sometimes they never do.
